Polyester Glass 4400-C

4400-C is a high temperature polyester glass FRP laminate which is capable of 250 deg C. It also possesses excellent electrical and mechanical strength and due to it being able to withstand high compressive loads at high temperatures it is an ideal material for platen press insulation.


Property Unit of measure Value
Tensile StrengthMpa
Elongation at Break%
Modulus of ElasticityMPa
Impact Strengthkj/m²22.7
Compressive StrengthMPa303
Shear StrengthMPa
Shore HardnessD Scale
Co-efficient of Frictionμ
Water Absorption @ 23 Deg C%0.3
Service Temperature IntermittentᵒC
Service Temperature ContinuousᵒC250
Melting pointᵒC
Thermal ConductivityW/m.ᵒC0.3
Dielectric StrengthkV/mm20
Volume ResistivityΩ.cm
Surface Resistivity
Arc ResistanceSec140